2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/35550The role of the identification of the vacuum and non-vacuum space-times in the computation of vacuum fluctuations in the presence of a cosmic string is discussed and an alternative interpretation of the renormalization is proposed. This procedure does not give rise to vacuum fluctuations.8 pages, MRC.PH-18/94, Plain TexGeneral Relativity and Quantum Cosmologytext